Transducer Size (Millimeters)152.4
DC Resistance4.1
Resonant Frequency46.15
Half Space Sensitivity82.36
Rated Noise Power150
Test Spectrum Bandwidth40Hz-500Hz

Transducer Size (Millimeters)152.4
DC Resistance4.1 Ω±5.0%
Resonant Frequency46.15 Hz15%
Half Space Sensitivity @ 2.83V82.36 dB±1.01
Sensitivity @ 1W/1m81.2 dB±1.01
Rated Noise Power (IEC 268-5 18.1)150 W
Test Spectrum Bandwidth40Hz-500Hz 12 dB/Oc
Effective Piston Area124.7 cm2
Moving Mass46.4 g
Motor Force Factor9.05 T•m
Voice Coil Inner Diameter35.55 mm
Gap Height6 mm
Maximum Linear Excursion8.5 mm
Ferrofluid Type
Minimum Impedance6.1 Ω±7.5%
Voice Coil Inductance0.91 mH
Mechanical Q Factor5.6
Electrical Q Factor0.67
Total Q Factor0.6
Ratio76.66 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance256.2 μm/N
Effective Cone Diameter12.6 cm
Motor Efficiency Factor20 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass1.74 Kg
Equivalent Volume5.59 L

This is a 6.5inch 4ohm woofer, a member of the new SBS product family. This driver features a black anodized aluminum cone, inverted rubber surround, ferrite magnet, steel basket. Designed for high excursion applications.